关于力的概念,下列说法中错误的是 [ ] A.力是物体对物体的作用,离开物体就没

题型:选择题

问题:

关于力的概念,下列说法中错误的是 [ ]

A.力是物体对物体的作用,离开物体就没有力

B.一个受力物体,同时也一定是施力物体

C.发生力的作用,物体必须相互接触

D.马拉车前进,同时车也用力拉马

考点:力作用的相互性力的作用效果
题型:选择题

美国是一个年轻的国家,但其政治、经济和文化的发展都很充分。下列关于美国的叙述,不正确的是[ ]

A.《解放黑人奴隶宣言》使得所有奴隶都获得了自由

B.爱迪生发明的电灯改变了人类传统的照明方式

C.罗斯福新政提供了国家干预经济生活的范例

D.二战后初期美国经济出现了空前繁荣局面

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给下面句子中画线的词换一个意思相近的词,写在句后的括号里。  

1.小小的种子可以冲破坚硬的外壳。(      )  

2.飞蛾求生的欲望令我震惊。(      )  

3.我可以好好地使用它,也可以白白糟蹋它。(      )

题型:选择题

Passage Three

Imagine eating everything delicious you want with none of the fat. That would be great, wouldn’t it
New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients and also cause unpleasant side effects in some people. So it’s up to consumers to decide whether the new fat-free products taste good enough to keep eating.
Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can’t be digested at all.
Normally, special chemicals in the intestines (肠道) "grab" molecules of regular fat and break "them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids.
The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream.
Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it’s that ability to slide unchanged through the intestines that makes olestra so valuable as a fit substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc.
Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.

Why are nutritionists concerned about adding vitamins to olestra

A.People may be induced to eat more than is necessary.

B.It may trigger a new wave of fake food production.

C.It may lead to the over-consumption of vitamins.

D.The function of the intestines may be weakened.

题型:选择题

A工厂是一个生产某种汽车零件的专业工厂,产品成本计算采用标准成本计算系统,有关资料如下:

(1)成本计算账户设置

设置“原材料”、“产成品”、“生产成本”等存货账户,均按标准成本计价。

成本差异账户设置8个:材料价格差异、材料数量差异、直接人工工资率差异、直接人工效率差异、变动制造费用效率差异、变动制造费用耗费差异、固定制造费用能量差异、固定制造费用耗费差异。

(2)费用分配和差异结转方法

原材料在生产开始时一次投入,在产品直接材料成本约当产成品的系数为1;除直接材料外的其他费用陆续发生,其在产品

约当产成品的系数为0.5。

成本差异采用“结转本期损益法”,在每月末结转“主营业务成本”账户。

(2)单位产品标准成本

直接材料(10千克×3元/千克)30元

直接人工(4小时×4元/小时)16元

变动制造费用(4小时×1.5元/小时)6元

固定制造费用(4小时×1元/小时)4元

单位产品标准成本56元

(3)本月生产及销售情况

生产能量11000小时

月初在产品数量600件

本月投产数量2500件

本月完工入库数量2400件

月末在产品数量700件

(4)有关成本计算的业务数据:

本月购入原材料30000千克,实际成本88500元(已用支票支付);本月生产领用原材料25500千克。

实际耗用工时9750小时;应付生产工人工资40000元;实际发生变动制造费用15000元;实际发生固定制造费用10000元。

要求:

编制以下业务的会计分录:

(1)购入原材料;

(2)领用原材料;

(3)将生产工人工资记入有关成本计算账户;

(4)结转本期变动制造费用;

(5)结转本期固定制造费用;

(6)完工产品入库;

(7)期末结转本期成本差异。

题型:选择题

采用贴现法付息,企业实际可用的贷款额会增加,所以其实际利率会高于名义利率。( )

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